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কোন শর্তে

y = m x = n

x^{2} + y^{2} = c^{2}

বৃত্তকে স্পর্শ করবে?

n^{2} = c^{2} (1 + m^{2})

c^{2} = m^{2} + n^{2}

m^{2} c^{2} = c^{2} - n^{2}

n^{2} + c^{2} = m^{2}

ANS : 1

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